Sounds very good, what GFX card you looking at for it, also did you mean DDR400 not DDR200 for the RAM.

You'll need at least PC3200 DDR RAM for that rig Orenda, otherwise you're wasting your money. I'm sure that's what your getting though, right?

DDR 400 mhz RAM runs at 200mhz, but it's Double Data Rate, ie. effective clock is 400mhz, this is also given the designation, PC3200.

The computer you propose above uses a front side bus speed of 200mhz, also the Athlon 64 CPU uses the 200mhz Front side bus speed as well, but these use it in DDR mode, effectively giving a FSB speed of 400mhz.

The PC you plan should run in SYNC mode, ie. the CPU, FSB and RAM speed are all 200mhz or DDR 400mhz. This "sync" is one of the reasons these systems perform well.

The P4 crowd will scoff at this, saying they have a 800mhz FSB system, but it's very similar, being based on a real FSB clock of 200mhz, but the P4 architecture offers 1 more 2x multiplier to obtain their amazing FSB speed.

What will happen is you will get a bottleneck from the RAM.  The FSB will run at 400MHz and the RAM at 200MHZ.  This will cause a signicant performance loss.  Using DDR400 with the FSB of 400MHz will give you a ratio of 1:1 with the RAM and FSB.  This will mean nothing is bottlenecking the other and the performance will be optimal.

Got my RAM today for the new system. 512mb PC-333 DDR. Couldn't find any PC400. I have to wait until May 7 before I can get my new mobo and CPU. Got a big calculus exam on that morning so I got a lot more to worry about than computers.

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AAARRGGHH !!!

You can lead a horse to water.........

That's too bad. It's strange too, because PC3200 DDR RAM (400mhz) is current technology and should be stocked more than any other type of RAM module.

Makes me think the guys around are getting rid of old stock before re-ordering.   ???

Also, the price of PC3200 and the others has been fairly parrallel, here anyway.


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LOL! I wasn't going to comment, but you seem to be having a good time!  

I disagree, I see it as a major problem.

Here you are starting out an upgrade with an inferior mainboard for a start, not to mention a system that could never be tweaked to run "in sync" so it's potential can be reached.

You may as well go for a 32 bit CPU on an nForce2 chipset, at least that way you'll have a cheaper system that is operating effectively.

The more you talk to the sales guy, the more he's messin' with your head. 

How do I even know if you guys are telling the truth? You see the thing is, I haven't even been talking to the sales guy. All he said was the 755-A2 is not available here, is there something else you'd like me to price. Don't jump to conclusions. That's rude.   Besides, that board is not my only potential choice. There's one by Gigabyte and one buy Aopen I'm also pricing too that do support the that darn DDR400. Truth be know, I've done RAM speed upgrades in the past and I've noticed no difference in preformance other than my computer boots slightly faster. All this crap where I need this and that before it runs properly. The way people are talking is that 166mhz makes the difference as a bicycle to the space shuttle. To heck with it. I'll just keep my current system.